25405900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19543}}^1$

素因数の和:19570

約数の個数: 36

約数和(自身を含む): 59374672

約数和(自身を除く): 33968772

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 19543, 39086, 78172, 97715, 195430, 254059, 390860, 488575, 508118, 977150, 1016236, 1270295, 1954300, 2540590, 5081180, 6351475, 12702950, 25405900]

約数ペア:

[(1, 25405900), (2, 12702950), (4, 6351475), (5, 5081180), (10, 2540590), (13, 1954300), (20, 1270295), (25, 1016236), (26, 977150), (50, 508118), (52, 488575), (65, 390860), (100, 254059), (130, 195430), (260, 97715), (325, 78172), (650, 39086), (1300, 19543)]